MacStandaloneContainerReader.java

/*
    This file is part of the iText (R) project.
    Copyright (c) 1998-2025 Apryse Group NV
    Authors: Apryse Software.

    This program is offered under a commercial and under the AGPL license.
    For commercial licensing, contact us at https://itextpdf.com/sales.  For AGPL licensing, see below.

    AGPL licensing:
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
package com.itextpdf.kernel.mac;

import com.itextpdf.kernel.exceptions.KernelExceptionMessageConstant;
import com.itextpdf.kernel.exceptions.PdfException;
import com.itextpdf.kernel.pdf.PdfDictionary;
import com.itextpdf.kernel.pdf.PdfName;

class MacStandaloneContainerReader extends MacContainerReader {
    MacStandaloneContainerReader(PdfDictionary authDictionary) {
        super(authDictionary);
    }

    @Override
    byte[] parseSignature(PdfDictionary authDictionary) {
        return null;
    }

    @Override
    long[] parseByteRange(PdfDictionary authDictionary) {
        return authDictionary.getAsArray(PdfName.ByteRange).toLongArray();
    }

    @Override
    byte[] parseMacContainer(PdfDictionary authDictionary) {
        if (authDictionary.getAsString(PdfName.MAC) == null) {
            throw new PdfException(KernelExceptionMessageConstant.MAC_NOT_SPECIFIED);
        }
        return authDictionary.getAsString(PdfName.MAC).getValueBytes();
    }
}